The innovative Blackhawk Knoxx PowerPak System (Modular Cheek Piece & Ammo Carrier) brings a new level of versatility and performance to the acclaimed SpecOps Stock. The modular PowerPak System includes a raised cheek-piece for use with optical sights, a shell holder that presents five 12-gauge shells ready for quick reloads, a watertight storage compartment for earplugs and spare batteries, and a standard height cheek-piece for use with low-rise sights or bead.

The PowerPak System& can be assembled with all or any part of the included components with the accompanying hex wrench for either left- or right-handed shooters. Installation is easy as the PowerPak System simply snaps onto the rear portion of the stock. Once installed, the PowerPak remains rigid and stable through the toughest of use. Designed specifically for the SpecOps Stock and the SpecOps NRS, the PowerPak System™ fits perfectly on all versions.